---
sidebar_label: Event Trigger samples
sidebar_position: 6
description: Examples for Event Triggers with Hasura
keywords:
  - hasura
  - docs
  - event trigger
  - example
---

# Event Trigger Samples

## Boilerplates

Here are a few boilerplates you can use to build and deploy event
triggers on different cloud providers:

- Source code:
  <https://github.com/hasura/graphql-engine/tree/master/community/boilerplates/event-triggers>

There are 2 types of boilerplates:

**Echo** Returns the event payload with some augmented data. It helps
you in understanding the event payload and parsing it.

**Mutation** Makes a mutation based on the event payload. It helps in
understanding database access inside an Event Trigger.

## Push Notifications

Here's a [notification demo app](https://serverless-push.demo.hasura.io/) showcasing sending web
notifications using Hasura Event Triggers and FCM.

- Video:
  <https://www.youtube.com/watch?v=nuSHkzE2-zo&feature=youtu.be>
- Source code:
  <https://github.com/hasura/sample-apps/tree/main/serverless-push>

## Data Transformations (ETL)

Here's a [serverless ETL demo app](https://serverless-etl.demo.hasura.io/) built using Hasura event
triggers and Algolia search.

- Video: <https://youtu.be/kWVEBWdEVAA>
- Source code:
  <https://github.com/hasura/sample-apps/tree/main/serverless-etl>
